National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Lansing Municipal Airport (KIGQ)

Lat: 41.54°NLon: 87.53°WElev: 607ft.

Mostly Cloudy

92°F

33°C

Humidity 61%
Wind Speed S 14 G 21 mph
Barometer 29.94 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 30 Jun 3:15 pm CDT
Extended Forecast for

South Chicago Heights IL

Extreme Heat Warning June 30, 03:38pm until July 3, 12:00am
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 30, 03:38pm until July 3, 12:00am

    NOW until 12:00am Fri

    Extreme Heat Warning

  • This Afternoon

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 76. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 76 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 103. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 95. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 95 °F

    Hot

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 74. Chance of precipitation is 20%.

    Low: 74 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Friday

    Friday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 92. Chance of precipitation is 60%.

    High: 92 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 93. Heat index values as high as 104. Southwest wind around 15 mph, with gusts as high as 30 mph.
Tonight
Clear, with a low around 76. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday
Sunny and hot, with a high near 95. Heat index values as high as 103. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 77. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny and hot, with a high near 95. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 74. Chance of precipitation is 20%.
Friday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 92. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Independence Day
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 68.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 83.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Chicago Heights IL
 41.48°N 87.65°W
Last Update:
2:46 pm CDT Jun 30, 2026
Forecast Valid:
3pm CDT Jun 30, 2026-6pm CDT Jul 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation